/Engine/Plugins/Runtime/XRBase/Source/XRBase/Public/HeadMountedDisplayFunctionLibrary.h
Cross XR-System query that returns a specific device's tracked position and orientation (in tracking space).
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Input|XRTracking") static void GetDevicePose ( const [FXRDeviceId](API\Runtime\HeadMountedDisplay\FXRDeviceId) & XRDeviceId, bool & bIsTracked, FRotator & Orientation, bool & bHasPositionalTracking, FVector & Position )